scholarly journals GhADF6 ‐mediated actin reorganization is associated with defence against Verticillium dahliae infection in cotton

2021 ◽  
Author(s):  
Yongduo Sun ◽  
Mengmeng Zhong ◽  
Yuanbao Li ◽  
Ruihui Zhang ◽  
Lei Su ◽  
...  
Keyword(s):  
Verticillium Dahliae ◽  
Actin Reorganization

Phytotoxicity of Verticillium dahliae Kleb. on sunflower sprouts

2020 ◽  
Author(s):  
A.A. Vypritskaya ◽  
◽  
A.A. Kuznetsov
Keyword(s):  
Verticillium Dahliae ◽  
The Family ◽  
Verticillium Dahliae Kleb

Data on the prevalence in the Tambov region of the pathogen Verticillium dahliae Kleb (Verticillium dahliae) and the phytotoxicity of filtrates of the pathogen isolated from sunflower and a wild weed of the family of compound flowers (Xantium strumarium) are presented.

scholarly journals The Campylobacter jejuni CiaD effector co-opts the host cell protein IQGAP1 to promote cell entry

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Nicholas M. Negretti ◽  
Christopher R. Gourley ◽  
Prabhat K. Talukdar ◽  
Geremy Clair ◽  
Courtney M. Klappenbach ◽  
...  
Keyword(s):  
Host Cell ◽  
Campylobacter Jejuni ◽  
Foodborne Pathogen ◽  
Small Gtpase ◽  
Host Cells ◽  
Cell Protein ◽  
Host Cell Protein ◽  
Cell Binding ◽  
Actin Reorganization ◽  
Cell Cytosol

AbstractCampylobacter jejuni is a foodborne pathogen that binds to and invades the epithelial cells lining the human intestinal tract. Maximal invasion of host cells by C. jejuni requires cell binding as well as delivery of the Cia proteins (Campylobacter invasion antigens) to the host cell cytosol via the flagellum. Here, we show that CiaD binds to the host cell protein IQGAP1 (a Ras GTPase-activating-like protein), thus displacing RacGAP1 from the IQGAP1 complex. This, in turn, leads to the unconstrained activity of the small GTPase Rac1, which is known to have roles in actin reorganization and internalization of C. jejuni. Our results represent the identification of a host cell protein targeted by a flagellar secreted effector protein and demonstrate that C. jejuni-stimulated Rac signaling is dependent on IQGAP1.

scholarly journals GhKWL1 Upregulates GhERF105 but Its Function Is Impaired by Binding with VdISC1, a Pathogenic Effector of Verticillium dahliae

2021 ◽  
Vol 22 (14) ◽  
pp. 7328
Author(s):  
Yang Chen ◽  
Mi Zhang ◽  
Lei Wang ◽  
Xiaohan Yu ◽  
Xianbi Li ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transgenic Plants ◽  
Gossypium Hirsutum ◽  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Defense Response ◽  
Upland Cotton ◽  
Effector Protein ◽  
Positive Regulator ◽  
Its Gene

Verticillium wilt, caused by Verticillium dahliae, is a devastating disease for many important crops, including cotton. Kiwellins (KWLs), a group of cysteine-rich proteins synthesized in many plants, have been shown to be involved in response to various phytopathogens. To evaluate genes for their function in resistance to Verticillium wilt, we investigated KWL homologs in cotton. Thirty-five KWL genes (GhKWLs) were identified from the genome of upland cotton (Gossypium hirsutum). Among them, GhKWL1 was shown to be localized in nucleus and cytosol, and its gene expression is induced by the infection of V. dahliae. We revealed that GhKWL1 was a positive regulator of GhERF105. Silencing of GhKWL1 resulted in a decrease, whereas overexpression led to an increase in resistance of transgenic plants to Verticillium wilt. Interestingly, through binding to GhKWL1, the pathogenic effector protein VdISC1 produced by V. dahliae could impair the defense response mediated by GhKWL1. Therefore, our study suggests there is a GhKWL1-mediated defense response in cotton, which can be hijacked by V. dahliae through the interaction of VdISC1 with GhKWL1.

scholarly journals BIN2 negatively regulates plant defense against Verticillium dahliae in Arabidopsis and cotton

2021 ◽  
Author(s):  
Yun Song ◽  
Yaohua Zhai ◽  
Linxuan Li ◽  
Zhaoen Yang ◽  
Xiaoyang Ge ◽  
...  
Keyword(s):  
Plant Defense ◽  
Verticillium Dahliae

scholarly journals The Non-Pathogenic Fusarium oxysporum Fo47 Induces Distinct Responses in Two Closely Related Solanaceae Plants against the Pathogen Verticillium dahliae

2021 ◽  
Vol 7 (5) ◽  
pp. 344
Author(s):  
Javier Veloso ◽  
José Díaz
Keyword(s):  
Fusarium Oxysporum ◽  
Solanum Lycopersicum ◽  
Capsicum Annuum ◽  
Verticillium Dahliae ◽  
Host Species ◽  
Competitive Inhibitor ◽  
Differentially Expressed ◽  
Biosynthetic Genes ◽  
Important Player ◽  
Tomato Mutant

The non-pathogenic Fusarium oxysporum Fo47 is able to protect Capsicum annuum (pepper) but not in Solanum lycopersicum (tomato) against the pathogen Verticillium dahliae. Transcriptomics of the plant during the interaction with Fo47 shows the induction of distinct set of genes in pepper and tomato. The number of differentially expressed (DE) genes in pepper (231 DE genes) is greater than the number of DE genes in tomato (39 DE genes) at 2 days after the treatment with Fo47. Ethylene related genes were present among the DE genes in both plants, and the up-regulation of ethylene biosynthetic genes was observed to be triggered during the interaction of both plants with Fo47. The treatment with MCP (1-Methylcyclopropene, an ethylene-competitive inhibitor) reduced the Fo47 protection in pepper against Verticillium dahliae. Intriguingly, Fo47 was able to protect the ethylene-insensitive tomato mutant Never-ripe (Nr) against Verticillium dahliae, but not the tomato wilt type cv Pearson. Overall, ethylene is shown to be an important player in the response to Fo47, but its role depends on the host species.

scholarly journals Identification of miRNA targets in eggplant in response to Verticillium dahliae by degradome sequencing

2021 ◽  
Vol 160 (1) ◽  
pp. 97-111
Author(s):  
Ting Li ◽  
Nianjiao Tao ◽  
Yuanmi Lin ◽  
Min Chen ◽  
Dongli Jiao ◽  
...  
Keyword(s):  
Verticillium Dahliae ◽  
Degradome Sequencing ◽  
Mirna Targets

scholarly journals Mechanical Point Loading Induces Cortex Stiffening and Actin Reorganization

2019 ◽  
Vol 117 (8) ◽  
pp. 1405-1418 ◽  
Author(s):  
Jinrong Hu ◽  
Shenbao Chen ◽  
Wenhui Hu ◽  
Shouqin Lü ◽  
Mian Long
Keyword(s):  
Actin Reorganization

Interaction of Meloidogyne hapla and Verticillium dahliae, and the chemical control of wilt in strawberry

1970 ◽  
Vol 10 (45) ◽  
pp. 493 ◽  
Author(s):  
JW Meagher ◽  
PT Jenkins
Keyword(s):  
Broad Spectrum ◽  
Verticillium Dahliae ◽  
Methyl Bromide ◽  
Chemical Control ◽  
Soil Fumigation ◽  
Meloidogyne Hapla ◽  
Root Knot Nematode ◽  
Methyl Isothiocyanate ◽  
Severity Of Disease ◽  
Verticillium Dahliae Kleb

In a field experiment with strawberries, pre-plant treatments with broad-spectrum fumigants methyl bromide-chloropicrin (450 kg/ha) or methyl isothiocyanate-dichloropropene (500 l/ha) (and 300 l/ha) controlled wilt caused by Verticillium dahliae Kleb and resulted in increased yields. Soil fumigation with the nematicide ethylene dibromidz (105 l/ha) also improved yields. It controlled the root-knot nematode (Meloidogyne hapla Chitwood), delayed the onset of wilt symptoms and reduced the severity of disease. This indicated a nematode-fungus interaction and is the first report of a Meloidogyne-Verticillium interaction in strawberry.

scholarly journals Distinct roles for Crk adaptor isoforms in actin reorganization induced by extracellular signals

2009 ◽  
Vol 122 (22) ◽  
pp. 4228-4238 ◽  
Author(s):  
S. Antoku ◽  
B. J. Mayer
Keyword(s):  
Actin Reorganization ◽  
Extracellular Signals
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